Tarisah, Putri Subur, and Destya Waty Silalahi. “Peran Guru Kristen Dalam Mengembangkan Keterampilan Kolaboratif Pada Pembelajaran Abad Ke-21 Berdasarkan Filsafat Pendidikan Kristen [The Role of Christian Teachers in Developing Collaborative Skills in 21st Century Learning Based on the Philosophy of Christian Education]”. Diligentia: Journal of Theology and Christian Education, vol. 6, no. 2, May 2024, pp. 241-63, doi:10.19166/dil.v6i2.8289.